Wednesday:SPUR Lunchtime Forum: From Trafficways to Livable Streets. Livable City Executive Director Tom Radulovich discusses "contextualist urban transportation, the initial freeway revolt of the 1960s, and the ongoing movement in San Francisco and elsewhere to remove freeways and convert existing trafficways into livable streets." 12:30 p.m.

Wednesday:SFBC Bike-In Movie Night. The San Francisco Bicycle Coalition holds the first of its summer movie nights, featuring the BMX cult classic, "Rad." Held in the parking lot of the Good Hotel, 112 7th Street@Mission. 7 p.m.

Thursday:SPUR Lunchtine Forum: The Rise of Counter Institutions. A discussion with James Tracy, San Francisco Community Land Trust Board of Directors president, Rene Cazenave, executive director of the San Francisco Information Clearing House, Pam Pierce, author and founder of the San Francisco League of Urban Gardeners, and Gabriel Metcalf, SPUR's executive director, about "the origins of urban gardens, land trusts, and community development corporations." 12:30 p.m.

Sunday:Freedom from Training Wheels. Join the SFBC in a car-free Golden Gate Park in an effort to free kids of their training wheels. JFK Drive, west of Conservatory Dr., Golden Gate Park. 1 p.m.

Keep an eye on the calendar for updated listings. Got an event we should know about? Drop us a line.

Bryan Goebel is a reporter at KQED Public Radio in San Francisco. A veteran journalist and writer, he helped launch Streetsblog SF in 2009 and served as editor for three years. He lives car-free in the Castro District.